不同健康类型马尾松林分松墨天牛种群动态

The Study of the Population Dynamics of Monochamus alternates in the Different Types of Health Masson Pine Stands

在福建武夷山采用林间调查和诱捕松墨天牛成虫的方法,研究不同健康类型马尾松林分松墨天牛种群动态。结果表明:健康林分(A)、亚健康林分(B)、不健康林分Ⅰ(C)和不健康林分Ⅱ(D)4个监测点诱捕到的松墨天牛数量分别为73、108、136、162头;危害程度分别为:轻度危害、中度危害、中偏重度危害、重度危害。松墨天牛在武夷山市1 a发生1代,不同健康类型马尾松林分中松墨天牛成虫均于5月上旬始见,但其终见期不同,不健康林分Ⅰ和健康林分中松墨天牛成虫终见于9月中旬,而其他类型林分终见期在9月下旬;亚健康林分、不健康林分Ⅰ中松墨天牛活动高峰期完全一样,但不同于健康林分、不健康林分Ⅱ。

The paper was based on the study of the development rule of Monochamus alternatus in 4 differently health masson pine stands in Wuyishan city, Fujian province, which put forward to provide a reliable basis for scientific and effective prevention of occur rence and damage of Monochamus alternatus. Using the method of forest investigation and trapped ahernatus to study Monochamus alternatus population dynamics in the different types of health Masson pine stands. The results showed that ： The amounts of the trapped Monochamus alternatus of health Masson pine stands（ A）, subhealth stand （B）, unhealthy stand Ⅰ （C）and unhealthy stand Ⅱ （D） monitoring point in different types of were 73,108,136,162,the harm degree of Monochamus alternatus were mild harm, moderate harm, moderate biased severe harm, severe harm. Monochamus alternatus in Wuyishan City had 1 generation in a year, Monochamus alternatus were in late September. The active peak of Monochamus alternatus in subhealth stand and unhealthy stand Ⅰ was exactly same, but different from health stand and unhealthy stand Ⅱ.